mirror of https://github.com/grpc/grpc.git
murgatroid99
9 years ago
parent
1ba1bba66a
commit
d595fb6557
9 changed files with 27 additions and 188 deletions
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/*
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <ruby/ruby.h> |
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#include <signal.h> |
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#include <stdbool.h> |
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#include <grpc/support/log.h> |
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#include "rb_grpc.h" |
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static void (*old_sigint_handler)(int); |
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static void (*old_sigterm_handler)(int); |
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static volatile bool signal_received = false; |
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/* This has to be handled at the C level instead of Ruby, because Ruby signal
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* handlers are constrained to run in the main interpreter thread. If that main |
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* thread is blocked on grpc_completion_queue_pluck, the signal handlers will |
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* never run */ |
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static void handle_signal(int signum) { |
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signal_received = true; |
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if (signum == SIGINT) { |
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old_sigint_handler(signum); |
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} else if (signum == SIGTERM) { |
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old_sigterm_handler(signum); |
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} |
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} |
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static VALUE grpc_rb_signal_received(VALUE self) { |
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(void)self; |
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return signal_received ? Qtrue : Qfalse; |
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} |
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void Init_grpc_signals() { |
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old_sigint_handler = signal(SIGINT, handle_signal); |
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old_sigterm_handler = signal(SIGTERM, handle_signal); |
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rb_define_singleton_method(grpc_rb_mGrpcCore, "signal_received?", |
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grpc_rb_signal_received, 0); |
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} |
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@ -1,39 +0,0 @@ |
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/*
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* |
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* Copyright 2016, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#ifndef GRPC_RB_SIGNAL_H_ |
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#define GRPC_RB_SIGNAL_H_ |
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void Init_grpc_signals(); |
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#endif /* GRPC_RB_SIGNAL_H_ */ |
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@ -1,69 +0,0 @@ |
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# Copyright 2016, Google Inc. |
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# All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions are |
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# met: |
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# |
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# * Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# * Redistributions in binary form must reproduce the above |
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# copyright notice, this list of conditions and the following disclaimer |
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# in the documentation and/or other materials provided with the |
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# distribution. |
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# * Neither the name of Google Inc. nor the names of its |
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# contributors may be used to endorse or promote products derived from |
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# this software without specific prior written permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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require 'thread' |
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require_relative 'grpc' |
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# GRPC contains the General RPC module. |
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module GRPC |
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# Signals contains gRPC functions related to signal handling |
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module Signals |
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@interpreter_exiting = false |
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@signal_handlers = [] |
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@handlers_mutex = Mutex.new |
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def register_handler(&handler) |
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@handlers_mutex.synchronize do |
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@signal_handlers.push(handler) |
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handler.call if @exit_signal_received |
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end |
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# Returns a function to remove the handler |
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lambda do |
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@handlers_mutex.synchronize { @signal_handlers.delete(handler) } |
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end |
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end |
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module_function :register_handler |
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def wait_for_signals |
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t = Thread.new do |
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sleep 0.1 until GRPC::Core.signal_received? || @interpreter_exiting |
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unless @interpreter_exiting |
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@handlers_mutex.synchronize do |
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@signal_handlers.each(&:call) |
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end |
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end |
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end |
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at_exit do |
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@interpreter_exiting = true |
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t.join |
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end |
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end |
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module_function :wait_for_signals |
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end |
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end |
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